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What are the Issues when Selecting a Database Issues when Selecting a Database Storage space requirement: A database requires about triple storage space of the actua
Give the two reasons for allowing concurrency
An instance of relational schema R (A, B, C) has distinct values of A including NULL values. then A is a candidate key or not? If relational schema R (A, B, C) has distinct val
System R was developed and designed over a period of 1974-79 at IBM San Jose Research Company. Its purpose was to illustrate that it is possible to create a Relational System tha
it can be possible to create any table without primary key
draw er diagram using entities crop,employee,department,plot,cultivation plan,machinery,seed,fertilizer
In Database software have only pure security or some dis secured by administrator?
Multilevel Indexing Scheme Consider the indexing scheme where the address of the block is consider in the index for each record, for a little file, this index would be little a
Explain TPS concurreny executions stating their advantages in online business advancement
what is Storage-Device Hierarchy question
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